Locomotive-boiler fire-box.



G. M. BEAN.

LOCOMOTIVE BOILER HRE BOX.

APPLICATION FILED AUG-3. 1914.

Patented May 4, 1915.

2 sngsrs susn I.

G. M. BEAN.

LQCOMOTIVE BGILER FIRE BOX.

APPLICATION FILED AUG.3. 1914.

Patented May 4, 1915.

2 SNEETSSHEET 2- WZZ/z eases UNITED S'llflfliltl lfl flllill lil FFICE.

GUY M. BEAN DE LOS ANGELES, 0152-, BY MESNE ASQIGNMENTS, TO AMERICAN ARCH COMPfiNY, 03 NEW 'ZGEQE, Y A C(ERLGBATIQN 033 DELAWARE.

LGCOMQTIVE-BQILER FIREBOK.

Application filed August 3. 191%.

T all whom it may (.UI'LCCTTZ Be it known that I, GUY M. BEAN, a citi zen of the United States and a resident of Los Angeles, county of Los Angeles, and State of California, have invented certain new and useful Improvements in Locomotive-Boiler Fire-Boxes, of which the following is a specification.

The object of my invention is to provide a refractory lined closure for the fire boxes of oilburning locomotives, which shall cost less and be more durable than those at present in use; which shall be more easily and cheaply repaired; and which shall result in greater economy in use of the fuel oil.

My invention resides in a locomotive fire box pan or closure having a round bottomed portion, the curved surface of which is lined with a plurality of segmental bricks, its end walls protected with refractory members held in place by the lining and provided in one end wall with a burner opening.

My invention also resides in a metallic closure for the bottom of a locomotive fire box having a semi-cylindrical depressed portion lined with a plurality of segmental lire bricks and the remaining portions pro tected by refractory bricks held. in place by the lining of the depressed portion, and pro vided in one end wall with a. burner opening.

My invention also resides in the several P combinations of constructions and arrange" boiler firebox embodying my'invention in a preferred form; Fig. 2 is a transverse sectional view of the lire box on the line 2-2 of Fig. 1; Fig. 3 is an enlargement of a portion of Fig.2 for more clearly illustrating one feature of my invention; Fig. l is a fragmentary transverse sectional view of the firebox on the line t at of Fig. 1. Fig. 5 is a detail longit ulinal sectional view of the depressed portztof the pan on the Specification of Letters Zretent.

line 5 5 of Fig. 4; and Fig. 6 is a perspec tive view of one of the small ventilator bricks.

The fire box A, as illustrated in the drawings, has a fine sheet a at its forward end from which fines a lead forward into the barrel of the boiler, side sheets a, a and a rear sheet a. The fire box is inclosed within the boiler shell and forms with the shell a the front, side, and rear Water, legs a, a and a respectively. The rear end of the lire box contains the usual fire door or opening a. The Water legs are closed at their lower ends by means of the. mud ring a which extends completely around the bottom of the fire box.

1 close the lower end of the fire box by means of a pan B, which is substantially flat and secured at its edges to the mud ring a with bolts o and in the form illustrated is also supported by cross straps or bars b which extend across the lire box he; heath the depressed portion of the pan and have their ends bolted to the mud ring. The floor Z of the pan B is substantially on a level with the mud ring or the lower end of the firebox and 1 provide the pan with a central depressed or drop portion C which is substantially sernirylihdrioal in cross section and eiztends from the rear end of the tire box to a point spaced rearwsrdly from the flue sheet or the forward end of the. tire box. This depressed portion forms the initial combustion or mixing chamber wherein the oil. air and gases are primarily heat/ed, partially consumed and thoroughly mixed before they rise into the fire box proper. I close the rear end of the dropportion with a vertical wall a and I close the forward end with a similar wall 0 I pros-idle the forward end with a large central opening c to receive the oil burner E. I make the drop portion C of the pan'semicylindrical in form for several reasons: The sheet metal of which it is made can be most easily formed into the shape desired and with the least amount of labor. This form best accommodates itself to fulfil one of the main objects of my invention, :Which is to line substantially all of the bottom and sides thereof With a number oi bricks which identical with each other in form and di mensions. have shown the degree d pop tion C as being substantiallysemi-circular inform. It will 'be understood that it may be somewhat less than a half cylinder andstill preserve substantially all of the ad vantageous features and functions, the principal point being that it is substantially semi-cylindrical in shape so that, except for the provision of the holes 57*, it is possible to line it with segmental bricks, that are curved to correspond with the arc of the circle upon which the pan is formed, and which are substantially identical. The drop portion C is connected or secured 'at its upper longitudinal edges to the hori-' zontal floor plate I) by means of angle members a. The extreme upper longitudinal edges 0 of the lower portion of the pan may extend above the floor plate b and form abutments for retaining the bricks in position which protect the plate 6 and when used these upper edges prevent the floor lower part of the semi-cylindrical part of the pan beneath the wall. This horizontal plate 0 serves as a convenient foundation on which to build the wall and eliminates the necessity of conforming the lower bricks of the Wall to the circle of the sheet C. I pro tect the forward end bythe wall 0 supporting it upon a horizontal plate 0 similar to the plate 0. This wall has an opening F which is coincident with the opening 0 to receive the burner E. The burner E projectsthe oil longitudinally through the pan and against the wall 0". The bricks D conform with the inner surface of the portion C and are so related thereto incsize, in the form shown, that it requires three of these bricks to complete each transverse row and theupper edges of the bricks of each row project above the floor 72 I proportion the bricks in this manner so that the lining of the depressed portion will retain the bricks in position which protect the floor N. The bricks D may have tongued and grooved ends which assist in retaining them in posi- :front and rear Walls 0 and c and the width of the bricks D so that the several rows of the bricks D, when in position, fit' snugly application Ser. No.

the bricks 6 between the front and rear Walls whereby the front and rear walls and the lining of the shell C mutually retain each otherin position. The front wall is preferably made up of two lower bricks 0, one at each side of the burner opening, and an upper row 0 formed of similar bricks which rest upon the lower row and are retained thereby in position' I retain the bricks 0 in proper separated relation by means of a center spacing brick 0 which I place between them upon the plate 0. The upper edgQsc -Of the bricks c and the lower edges 0 of the upper bricks are so formed that the lower parts of the upper bricks are retained between the lower bricks and the end wall 0 of the .pan and the middle brick c of the upper row is long enough to span the burner ppening and' rest at its ends upon the bricks c, Whereby"it is retained inposition. The construction of the front wall, 'here described, is not claimed in this application, but is both described and claimed in my 4:783, filed August 3, 1914-. Under I ordinary conditions, the burner openingc, is large enough to allow sutlicient air to enter the fire box for the proper combustion of the oil, but I someon edge and between the bricks-b and the inner sheets of the fire box. The bricks 6* project above the bricks Z1 and thoroughly protect the lower part of the water legs from the direct action of the flames. These bricks which thus protect the plate I) are 4 prevented from sliding off of the plate b by the upper projecting edges '0 of the depressed portion of the pan, but, as stated, I sometimes omit these metallic abutments, and even when originally provided theysometimes burn away, butl even then the floor bricks cannot be displaced by the jarring of the locomotive when running,as they are retained in position by the upper ends of the segmental bricks D. 1 also cover the portion Z) of the floor 5 which connects the upper end of the plate 0 to the front water leg, by means of floor bricks 7) similar to These bricks are retained upon the floor against the jarring action of the locomotive by the upper parts of the bricks c" form ng the upper row of the front wall. The twobricks forming the lower part of the wall at the forward end 1 of the cylindrical poiiion am hold in lion by tho oylimlrirnl lining Tho nuler bricks of lhn upper row 2m livid o heir positions in film ororhippinp lllllilg 51ml hr the two lnwer hrioli's and the conic-r lunch of the upper row of end ilf'illkia is lfll fi in position by {he two lower hrielu more, the upper row of the end li ido: holds the floor bricks in, position hich pioneer, the rear part of the pain roiisiwgmnitly the lining of the cyli l'n'lriital pornon of the {inn Srrves to retain the other i'mrfiions of the wfmowr'r lining in posit-ion.

particularly advantageous feature of my invention resides in tho ewe with wliioh can repair tho lining at any time; The several segmental ln' zzh's and line lloor bricks are free in he removed n'sul r I or) without disturbing any comidomhln numlae of bricks; in fact, most of ihezn win he plliced without removing, any hru'lr hot iho one to be roplacod. Thi r wills in the, 1' duction of the repair (:xprnwe f depressed portion of the pan, its ends, completely limo! which are all of 0120 pntlern lrfll 15s when: 2hr small sections 5/ are used} 2 canitnl sli up in stocks of repair oz-irks reduced to :1 minimum Preferably l arrange the :3 mission openings (i one at eni'i' jncent to the lean end of rim f tion of lho Dan. M lv ml" streams of air which enter l:

n 'ngs, into a:

* :1; iii in :m- 12; out; relziii'v'oly forming relnzi ely in, exise n hng cirifiunieronl; I provide two of tho opening; sidel. and I'n'mho lhou: sonwwn; longitudinally of the p22! limo the llw segmental lnirhs l w pwrnlo ing ledg s for the bll'i'lfi wiih whirl: i lino the pan nil these paints. lllr l fiul of lhe bricks I) l lino ills pan miLh 5; ii 15 z" bricks, over the openings l i'hrse i: ill are of the some length on Ellie Willlll Lin bricks l) and are nood in, place iherwh and are formed to span the open-mop 5, 1': ml rest at their ends upon the Wall oi the pan x The ventilator hrioks' y are long; 21nd a narrow and I cut away their cent/er porlions at each side forming recesses 5 therein and extending from their inner to their outer surfaces, so that -when he hrioloa are laid iogcther, as shown in Figs, 1 and l lili s rooesseu y will form suhwldiary air inlet op nings g extending through the l ning of the pun, these openings licingl arranged (nor the openings g in the pun itself serve to admit al I atthezse poinls llllu the m'nnhustionchumber. I taper tlmsu bricks radially ho thin they will lie in firm and solid Contact with Further each other and with the adjacent segmental lining rid The ventilator bricks g in; tho-- or rd Sid! by side form what may proporh he termed gratings covering the 1 :05 g in the wall of the pan. The air n on: therein are long and nar- '2 i ivide the incoming air into ihin streams thereby causing iwiwly mingle with the gases 3 which results in the most nation of the fuel, The ventilriior h: w as thus mode can be produmd at a lower Lin-1i and the repairing thereof is much clmipor ihzin the perforated bricks in commr is this purpose. It is only neuen se one of these ventilator hrioh's v to replace or renew one small 1x expensive brick, whereas in lfliijalifll m usual. porforabed brick it inquires zl. wplnoing of a relatively large brink winch nah more expensive and requires; tho vmliiure of more time and labor H vi ham nscribed my invention I L'lfiilll ans new will. desire to secure by Letters laiont:

l. A. hinrom wo boiler firebox in combinaom closing pan provided posed longitudinally exlnzlriirnl portion depending i' wil of tho firebox hori- =1 -r plzxlr onnecliug the with {he lower edge of the l'or will pan chiefly (our of mihntaniizally identirnl zuigoal within said doa. lie omor edges of said lili- 1 e said lloor plates, and irks on will horizontal wr flll in plate by the upper rd hrishs.

hoi loi lilnlmi. in rombinamu rh log pan. having a willing; ventrally disposed oyliznlrical dopressed pornlisposed floor plates conporlirms of the d ressed or side edges of t 1e firo \lges. of the se ii-oylinclri a plumli he cur 0i lion with s I zonlnl flow g zilmtmonte lor floor pint 9:

3. The tie box of an oil burning locomoiive and a pm: {losing the lower end thereof, will pan liming lon. itudinully extending tlflpl'fibstfl poriioin and one end of said depromi l pmiiull being provided with a burnrr s oi ing in combination with an oil burner rm zllc." than the opening in said end and nduplol 1o projoct oil longil/udinally through 41: all Plimsoll portion, auxiliary nir inlets n; the nll of said depressed ortimi adj wxnl. h: u. opposite vnd of sol depressed portion soicl inlels bring formed of and serving as retainin zoo!" bricks placed upon 5211 pan Pisingabove the horination with a bottom closing pan having a semi-cylindrical elongated depressed portion, one end of said depressed portion being provided with a burner opening, and the side walls thereof being provided with auxiliary air inlets adjacent to the end opposite to said burner, said inlets being formed by narrow elongated bricks having recessed sides and arranged side by side and adapted when thus arranged to provide a plurality of narrow elongated air inlets.

6. An oil burning locomotive boiler lirebox, in combination with a shelf plate attached to and closing the bottom of said firebox, said shelf plate containing an elongated central opening, a plate transversely curved on the arc of a cylinder which intersects the plane of said shelf plate, the upper edges of the curved plate being fastened to said shelf plate, end plates: joining the ends of said curved plate to said shell plate, one of the end plates containing a burner and air admission opening, and said curved plate containing auxiliary air openings, for the purposes described.

7. An oil burning locomotive boiler firebox, in combination with ashelf plate attached to and closing the bottom of said firebox, said shelf plate containing an elongated central opening, a plate transversely curved on the arc of a cylinder which intersects the plane of said shelf plate, the upper edges of the curved plate being fastened to said shelf plate, end plates joining the ends of said curved plate to said shelf plate, one of the end plates containing a burner and air admission opening, said curved plate containing auxiliary air openings, and a lining of refractory bricks protecting the sev eral plates and containing corresponding openings,for the purposes described.

8. An oil burning locomotive boiler firebox, in combination with a shelf plate attached. to and closing the bottom of said firebox,'said shelf plate containing an elongated central opening, a plate transversely curved on the arc of a cylinder which intersects the plane of said shelf plate, the upper edges of the curved plate rising above and being fastened to said shelf plate in the opening the box in combibeing fastened thereof, end plates joining the, ends of said curvedplate to said shelf plate, one of the end plates containing a burner and air admission opening and said curved plate containing auxiliary air openings forthe purposes described. a I

9. An oil burning locomotive boiler firebox, in combination with a shelf plate attached to and closing the bottom of said firebox, said shelf plate containing an elongated centrul opening, a plate transversely curved on the arc of a cylinder which intersects the plane of said shelfplate, the upper edges of the curved plate rising above and to said shelf plate in the opening thereof, end plates joining the ends of said curved plate to said shelf plate, one of the end plates containing a burner and air admission opening and said curved plate.

containing auxiliary air openings, refractory bricks on said shelf plate and held by the upwardly extending edges of the curved plate and a lining of refractory bricks protecting the remaining plates and containing corresponding openings, for the purposes described.

10. An oil burning locomotive boiler firebox, in combination with a shelf plate attached to and closing the bottom of said firebox, said shelf plate containing an elongated central opening, a plate transversely curved on the arc of a cylinder which intersects the plane of said shelf plate and having its upper edges attached thereto, end plates closing the ends of and completing the depressed pan formed by the said curved plate, one of said end plates containing a burner and air at mission opening, said curved plate containing auxiliary air openings, refractory lining bricks upon said shelf plate, refractory bricks protecting said end plates, refractory bricks protecting the bot tom portion of said curved plate, and each side of said curved plate being protected by a single row of correspondingly curved bricks with bricks interposed in the row containing continuations of said auxiliary openings.

ll. In an oil bin ing locomotive boiler, a firebox having a cwsed bottom containing a semi-cylindrical longitudinally elongated pan having a burner and air admission ope-ning in one end and provided with auxiliary air openings in its sides, in combination with a refractory lining in the bottom of said pan and upon the ends thereof, refractory linings for thesides of the pan, each chiefly composed of curved refractorybricks each of which extends from the refractory lining in the bottom of the pan to the upper edge of the pan, for the purposes described.

12. In an oil burning locomotive boiler, a firebox .having a closed bottom containing a semi-cylindrical longitudinally elongated panhavinga burner and air admission openlng in R8 endi and provideti "with euxiiiary air openings in its sides, in combination with a refractory lining in the bottom of said pan and upon the ends thereof, refractory linings for the sides of the pan, each chiefly composed of curved refractory bricks each of which extenes freni the refractory lining in the bottem 0f the pan to the upper edge of the pen, and the remainder of the side iin- 16 ings being composed of narrow elongated bricks presenting opening-e that form continua'aions of the auxiliary openings in ihe sides 01 the pen.

In testimony whereof, I have hereunto set my hand, this 31st day of March, 1914, in 15 the presence of two subscribing witnesses. GUY M. BEAN. W'itnesses:

KATHERINE E. TITUS, PAUL "WEEKS. 

